Dictionary > Triploblastic

Triploblastic

Definition
adjective
Having three primary germ layers, such as ectoderm, mesoderm and endoderm.
Supplement
All higher and intermediate animals (i.e. from flat worms to humans develop from a triploblastic embryo, in contrast to other organisms (e.g. cnidaria) that develop from a diploblastic embryo.
Word origin: Greek tripló(os), threefold + blastikós, budding.
Related forms: triploblasty.
Compare: monoblastic, diploblastic.

See also: blastula, germ layer.


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